CN208635260U - Fresh air preheating device - Google Patents
Fresh air preheating device Download PDFInfo
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- CN208635260U CN208635260U CN201821356591.6U CN201821356591U CN208635260U CN 208635260 U CN208635260 U CN 208635260U CN 201821356591 U CN201821356591 U CN 201821356591U CN 208635260 U CN208635260 U CN 208635260U
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Abstract
The utility model discloses fresh air preheating devices, including fresh wind tube, plate solar heat collection unit and store heat release unit, the plate solar heat collection unit includes plate solar collector, flow pipe and return pipe, and flow pipe and return pipe are connect with the water outlet of plate solar collector and water inlet respectively；The storage heat release unit includes air hose and heat exchanger, the two-layer pipe with cyclic annular interlayer that the air hose is made of concentric inner tube, outer tube, heat exchanger is set in cyclic annular interlayer, filled with phase-change material to coat heat exchanger in cyclic annular interlayer, cyclic annular interlayer is closed at both ends phase-change material to be closed in cyclic annular interlayer；It is docked with two sections of fresh wind tubes at air hose inner tube both ends；The water outlet of the connection of the water inlet end of the flow pipe and heat exchanger, the return pipe and heat exchanger connects.Utility model device preheats fresh air using solar energy, and structure is simple, the operation is stable, energy conservation and environmental protection and low in cost.
Description
Technical field
Utility model device is related to Solar use and preheating device, especially fresh air preheating device.
Background technique
Energy conservation and environmental protection is the theme of the world today, it is closely bound up with human development.It is continuous with earth fossil energy
It reduces, the development and utilization of new energy becomes the focus of world attention.Solar energy is a kind of not only cleaned but also with sustainability
Resource, therefore many countries all start with solar energy resources and are generated electricity, heated, freezed, preheating fresh air etc., are delayed with this
Solve energy crisis and protection environment.
Solar energy is heated cold water by flat plate collector, is directly used in fresh air preheating, although energy saving, for solar energy
Desert, solar energy has unstability under different time, weather, and received amount of radiation is few, therefore this characteristic will
It will limit the use of solar energy within air-conditioning systems.So for the normal operation for guaranteeing winter air-conditioning system, frequently with electric heating
Device not only seriously increases new fan energy consumption, but also also since outdoor temperature is lower using Fresh air handling units heating fresh air
The risk that heat exchange coil freezes.
Electric heater is the equipment for allowing electric current to heat air by resistance wire fever, is divided into bare wire formula and tubular type.Electricity adds
Hot device has many advantages, such as that compact-sized, homogeneous heating, heat are stable, easy to control.But electric heater is to utilize high-grade energy
Source electric energy heats outdoor air, is unfavorable for energy conservation, and only preferably in a part of air-conditioner set and small-sized air condition system
Using.
Summary of the invention
In view of the above shortcomings of the prior art, the purpose of this utility model is that simple, the work that provides a kind of structure
Work is stablized, low in cost and energy-efficient fresh air preheating device.
The technical solution of the utility model is achieved in that
Fresh air preheating device, including fresh wind tube, plate solar heat collection unit and storage heat release unit, the plate solar
Heat collection unit includes plate solar collector, flow pipe and return pipe, flow pipe and return pipe respectively with plate solar collection
The water outlet of hot device is connected with water inlet；The storage heat release unit includes air hose and heat exchanger, the air hose by concentric inner tube,
The two-layer pipe with cyclic annular interlayer that outer tube is constituted, heat exchanger are set in cyclic annular interlayer, and phase transformation is filled in cyclic annular interlayer
For material to coat heat exchanger, cyclic annular interlayer is closed at both ends phase-change material to be closed in cyclic annular interlayer；The air hose inner tube
Both ends are docked with two sections of fresh wind tubes, will enter another section of fresh wind tube after air hose preheating by the fresh air that one section of fresh wind tube enters
And eventually enter into air-conditioning system；The connection of the water inlet end of the flow pipe and heat exchanger, the water outlet of the return pipe and heat exchanger
Connection.
Further, the heat exchanger is coil heat exchanger, is mounted on ring in the mode covered on outer wall of inner tube
In shape interlayer, uniformly, sufficiently exchange heat convenient for the liquid in heat exchanger with phase-change material.
Further, the cross section of the surfaces externally and internally any place of said inner tube is broached-tooth design, inner surface any place
The double wedge of broached-tooth design corresponds to the tooth socket between two double wedge of outer surface broached-tooth design, increases convenient for phase-change material full of double wedge
With the heat exchange area of fresh air.
Further, being provided with cross section along its length in interior tube cavity is criss-cross pipeline, cross pipeline
Length is consistent with inner tube length and rear and front end is all closed, and cross pipeline is connected by four sides of cross vertex correspondence and inner tube
It connects and is communicated with cyclic annular interlayer, enter cross pipeline convenient for phase-change material to increase the heat exchange area with fresh air.
Further, the outer surface and cyclic annular interlayer both ends for storing heat release unit outer tube are covered with thermal insulation material, prevent from storing heat release
Heat in unit scatters and disappears outward.
Further, the phase-change material is paraffin.
Further, plate solar collector is a square plate, in the setting of one jiao of plate solar collector lower end
There is water inlet, connect with return pipe, is diagonally provided with water outlet in plate solar collector upper end, is connect with flow pipe.
Further, it is provided with electric gate valve on return pipe and flow pipe, for controlling the flowing of water in pipeline.
Further, the switch of electric gate valve passes through the temperature for being used to incude phase-change material temperature in cyclic annular interlayer
Inductor control, when the temperature that temperature inductor detects phase-change material is higher than set temperature, electric gate valve is closed, and accumulation of heat is complete
At.
Further, it is provided with back water pump on return pipe, is raised to too for the low temperature water pump after exchanging exchanger heat
Positive energy flat plate collector is heated, and when electric gate valve is in close state, back water pump power-off stops working.
Compared with prior art, the utility model has the following beneficial effects:
1, utility model device storage heat release unit air hose be two-layer pipe, compared with other structures, fresh air with
The heat exchange area of phase-change material is bigger；The cross section of the surfaces externally and internally any place of inner tube is broached-tooth design, inner surface any place
The double wedge of broached-tooth design correspond to the tooth socket between two double wedge of outer surface broached-tooth design, while in interior tube cavity along its length
Being provided with cross section is criss-cross pipeline, and cross duct length is consistent with inner tube length and rear and front end is all closed, cross
Shape pipeline is connect with inner tube by four sides of cross vertex correspondence and is communicated with cyclic annular interlayer, and phase-change material is full of double wedge and ten
Font pipeline further increases the heat exchange area of fresh air and phase-change material when outdoor fresh air is contacted with air hose inner surface, improves
Heat exchanger effectiveness, achievees the effect that be fully warmed-up fresh air.
2, the utility model is 20 DEG C or so of paraffin as phase-change material using fusing point, and paraffin is low-temperature phase-change material, this
Low-temperature phase-change material has latent heat of phase change height, no supercooling and precipitation phenomenon, and repeatedly phase transition temperature and latent heat of phase change become after suction heat release
Change very little, it is nontoxic, cheap the advantages that.It is few and unstable in the received solar energy of solar energy desert winter institute, it utilizes
Solar energy at most can only select the paraffin of low melting point to carry out by temperature of cold water rises to 40 DEG C, thus in order to make full use of low-temperature water heating
Heat accumulation, and by paraffin heat release, achieve the purpose that stablize preheating fresh air.
3, utility model device heat exchanger is coil heat exchanger, can be made in exchanger using the heat exchanger
Liquid and paraffin uniformly, sufficiently exchange heat, and the overall heat exchange efficiency between paraffin and water are improved, so that heat is sufficiently stored in
In paraffin.
4, the outer surface of the outer tube of air hose and and cyclic annular interlayer both ends be covered with thermal insulation material, prevent from storing the heat in heat release unit
Amount is scattered and disappeared outward.
5, utility model device is using solar energy as collection heat energy, it is as cleaning, environmentally friendly, sustainability energy
The present apparatus can be used even if solar energy desert in source, and the not limitation of region, and it is wide to be applicable in region.
Detailed description of the invention
Fig. 1-utility model device primary structure schematic diagram.
Fig. 2-the utility model low temperature phase change stores the structural schematic diagram of heat release unit.
Fig. 3-the utility model low temperature phase change stores the schematic cross-section of heat release unit.
Wherein 1- fresh air；2- fresh wind tube；3- low temperature phase change stores heat release unit；4- plate solar collector；5- flow pipe；
6- return pipe；Electric gate valve on 7- return pipe；Electric gate valve on 8- flow pipe；9- inner tube；10- outer tube；11- spiral coil
Formula heat exchanger；12- paraffin；13- back water pump；14- double wedge；15- cross pipeline.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
Referring to figure 1, figure 2 and figure 3, fresh air preheating device, including two sections of fresh wind tubes 2, low temperature phase change store heat release unit 3, too
It is positive can flat plate collector 4, flow pipe 5 and return pipe 6, flow pipe 5 and return pipe 6 go out with plate solar collector 4 respectively
The mouth of a river is connected with water inlet；It includes air hose and coil heat exchanger 11, the air hose that the low temperature phase change, which stores heat release unit 3,
The two-layer pipe with cyclic annular interlayer being made of concentric inner tube 9, outer tube 10, coil heat exchanger 11 are set to cyclic annular folder
In layer, coil heat exchanger 11 is coated in cyclic annular interlayer filled with paraffin 12, cyclic annular interlayer is closed at both ends with by phase
Become material to be closed in cyclic annular interlayer；The both ends of the air hose inner tube 9 are docked with two sections of fresh wind tubes 2, will pass through a Duan Xinfeng
The fresh air 1 that pipe 2 enters enters another section of fresh wind tube 2 after air hose preheating and eventually enters into air-conditioning system；The flow pipe 5 and spiral shell
The water inlet end of capstan pipe heat exchanger 11 connects, and the return pipe 6 is connect with the water outlet of the hot device 11 of coil.
Coil heat exchanger 11 is mounted in cyclic annular interlayer with covering the mode on 9 outer wall of inner tube, is convenient for heat exchanger
Interior liquid and paraffin 12 uniformly, sufficiently exchanges heat,
Plate solar collector 4 is square plate, is provided with water inlet for one jiao in 4 lower end of plate solar collector,
It is connect with return pipe 6, is diagonally provided with water outlet in 4 upper end of plate solar collector, is connect with flow pipe 5.
It is respectively arranged with return pipe electric gate valve 7 and flow pipe electric gate valve 8 on return pipe 6 and flow pipe 5, works as paraffin
After 12 are completely melt, low temperature phase change stores the temperature inductor being arranged in heat release unit 3 and is used to detect the temperature of paraffin 12, when being higher than
It when preset value (preset value may insure that paraffin is completely melt), returns, the closing of flow pipe electric gate valve 7,8, meanwhile, setting is being returned
The power-off of back water pump 13 on water pipe 6 stops working, and the water in pipeline stops flowing, and fresh air preheating device completes accumulation of heat.
To increase the pre- heat area contacted with the fresh air 1 that fresh wind tube 2 enters, low temperature phase change stores the interior of 3 inner tube 9 of heat release unit
The cross section of outer surface any place is broached-tooth design, and the double wedge 14 of the broached-tooth design of inner surface any place corresponds to outer surface saw
Tooth socket between two double wedge 14 of toothing, phase-change material are full of the tooth socket of inner tube outer surface.Simultaneously along length side in 9 inner cavity of inner tube
It is criss-cross pipeline to cross section is provided with, 15 length of cross pipeline is consistent with 9 length of inner tube and rear and front end is all closed,
Cross pipeline 15 is connect with inner tube 9 by four sides of cross vertex correspondence and is communicated with cyclic annular interlayer, and paraffin enters cross
Shape pipeline and fresh air carry out heat exchange.And it scatters and disappears outward to prevent from storing the heat in heat release unit 3, stores 3 outer tube of heat release unit
10 outer surface and and cyclic annular interlayer both ends be covered with thermal insulation material.The material that inner tube 9 uses is the preferable copper sheet of thermal conductivity, outer tube
10 materials used is PVC boards.
It is lost to prevent from being used for a long time in fresh air preheating device for the recirculated water of heat exchange, is also set up on return pipe 6
There is the switch of water inlet pipe and control water inlet, convenient for supplement recirculated water in real time.
When sun abundance, plate solar collector 4 absorbs abundance, circulating hot water fail in time with paraffin 12 into
Row heat exchange, the gas of generation can cause the air pressure in the circulatory system that can increase, it is contemplated that safety is provided with one on flow pipe
Safety air vavle, for being vented.
To better understand utility model device, the working principle of utility model device is now discussed in detail:
When fine, air-conditioning system is in run-stopping status, and electric gate valve is opened at this time, and solar energy is by solar energy
Flat plate collector absorbs, and cold water is heated to be hot water, hot water by flow pipe inflow coil heat exchanger with paraffin into
Row heat exchange, the heat melts that paraffin absorbs hot water are liquid, and then by heat storage in paraffin, hot water temperature is reduced to cold
Water is simultaneously flowed into plate solar collector by return pipe.Whole process iterative cycles, until paraffin all melts, it is electric at this time
Dynamic gate valve reaches certain temperature by inductor detection liquid paraffin and closes, and Pump Failure stops working, in entire pipeline
Water stops flowing, and accumulation of heat finishes.
When entering night in winter or rainy weather, room temperature is reduced, then needs to open air-conditioning system to indoor heating, this
When due to outdoor temperature it is too low, then need to preheat outdoor fresh air.Paraffin flows into the outdoor of inner tube newly with from fresh wind tube at this time
Wind carries out heat exchange, the solidification of paraffin heat release, the double wedge and ten that the heat of storage is arranged by inner tube and inner tube interior surface layers
Font pipeline reaches outdoor fresh air, reaches preheating fresh air, then preheat fresh air from fresh wind tube be discharged into air-conditioning system finally to
Indoor heating.
When having solar radiation outside room on daytime, solar energy is stored in paraffin again, so that night or rainy days preheat
Fresh air is used.
It should be noted that when fine, if indoor and outdoor temperature is relatively low, air-conditioning system can also be opened to interior
Heating, preheats outdoor fresh air.Electric gate valve is opened at this time, and solar energy is absorbed by plate solar collector, by cold water
Be heated to be hot water, hot water is flowed into coil heat exchanger by flow pipe and carries out heat exchange with paraffin, meanwhile, paraffin with from
The outdoor fresh air that fresh wind tube flows into inner tube carries out heat exchange, the heat of paraffin is arranged by inner tube and inner tube interior surface layers convex
Tooth and cross pipeline reach outdoor fresh air, reach preheating fresh air, then preheat fresh air from fresh wind tube and are discharged into air-conditioning system
System finally gives indoor heating.
Winter of the utility model device in solar energy desert is also particularly suitable, and the present apparatus utilizes solar energy pair
Fresh air is preheated, and structure is simple, the operation is stable, energy conservation and environmental protection and low in cost, and suitable application region is wide, has significant economic effect
Benefit and social benefit.
Finally, it should be noted that the above embodiments of the present invention is only to illustrate act made by the utility model
Example, and it is not the restriction to the utility model embodiment.For those of ordinary skill in the art, it is stated upper
Other various forms of variations and variation can also be made on the basis of bright.Here all embodiments can not be given thoroughly
It lifts.All the technical solution of the utility model changes and variations that derived from that belong to are still in the utility model
Protection scope column.
Claims (10)
1. fresh air preheating device, including fresh wind tube, plate solar heat collection unit and storage heat release unit, which is characterized in that described
Plate solar heat collection unit includes plate solar collector, flow pipe and return pipe, and flow pipe and return pipe are respectively and too
The water outlet of positive energy flat plate collector is connected with water inlet；The storage heat release unit includes air hose and heat exchanger, the air hose by
The two-layer pipe with cyclic annular interlayer of concentric inner tube, outer tube composition, heat exchanger is set in cyclic annular interlayer, in cyclic annular interlayer
Filled with phase-change material to coat heat exchanger, cyclic annular interlayer is closed at both ends phase-change material to be closed in cyclic annular interlayer；Institute
It states air hose inner tube both ends to dock with two sections of fresh wind tubes, will be entered after air hose preheating by the fresh air that one section of fresh wind tube enters another
One section of fresh wind tube simultaneously eventually enters into air-conditioning system；The connection of the water inlet end of the flow pipe and heat exchanger, the return pipe and heat exchange
The water outlet of device connects.
2. fresh air preheating device according to claim 1, which is characterized in that the heat exchanger is coil heat exchange
Device is mounted in cyclic annular interlayer in the mode covered on outer wall of inner tube, convenient for liquid and the phase-change material in heat exchanger uniformly, fill
Divide heat exchange.
3. fresh air preheating device according to claim 1, which is characterized in that the cross of the surfaces externally and internally any place of said inner tube
Section is broached-tooth design, and the double wedge of the broached-tooth design of inner surface any place corresponds to the tooth between two double wedge of outer surface broached-tooth design
Slot increases the heat exchange area with fresh air full of double wedge convenient for phase-change material.
4. fresh air preheating device according to claim 1 or 3, which is characterized in that set along its length in interior tube cavity
Being equipped with cross section is criss-cross pipeline, and cross duct length is consistent with inner tube length and rear and front end is all closed, cross
Pipeline is connect with inner tube by four sides of cross vertex correspondence and is communicated with cyclic annular interlayer, enters cross convenient for phase-change material
Pipeline is to increase the heat exchange area with fresh air.
5. fresh air preheating device according to claim 1, which is characterized in that store outer surface and the ring-type of heat release unit outer tube
Interlayer both ends are covered with thermal insulation material, and the heat stored in heat release unit is prevented to scatter and disappear outward.
6. fresh air preheating device according to claim 1, which is characterized in that the phase-change material is paraffin.
7. fresh air preheating device according to claim 1, which is characterized in that plate solar collector is one rectangular flat
Plate is provided with water inlet for one jiao in plate solar collector lower end, connect with return pipe, in plate solar collector upper end
Diagonally be provided with water outlet, connect with flow pipe.
8. fresh air preheating device according to claim 1 or claim 7, which is characterized in that be provided with electricity on return pipe and flow pipe
Dynamic gate valve, for controlling the flowing of water in pipeline.
9. fresh air preheating device according to claim 8, which is characterized in that the switch of electric gate valve is by being set to cyclic annular folder
The temperature inductor control for incuding phase-change material temperature in layer, when the temperature that temperature inductor detects phase-change material is high
When set temperature, electric gate valve is closed, and accumulation of heat is completed.
10. fresh air preheating device according to claim 8, which is characterized in that be provided with back water pump on return pipe, be used for
Low temperature water pump after exchanger heat is exchanged is raised to plate solar collector and heats, when electric gate valve is in close state
When, back water pump power-off stops working.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821356591.6U CN208635260U (en) | 2018-08-22 | 2018-08-22 | Fresh air preheating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821356591.6U CN208635260U (en) | 2018-08-22 | 2018-08-22 | Fresh air preheating device |
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| Publication Number | Publication Date |
|---|---|
| CN208635260U true CN208635260U (en) | 2019-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821356591.6U Active CN208635260U (en) | 2018-08-22 | 2018-08-22 | Fresh air preheating device |
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| CN (1) | CN208635260U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109084394A (en) * | 2018-08-22 | 2018-12-25 | 重庆大学 | A kind of fresh air preheating device |
-
2018
- 2018-08-22 CN CN201821356591.6U patent/CN208635260U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109084394A (en) * | 2018-08-22 | 2018-12-25 | 重庆大学 | A kind of fresh air preheating device |
| CN109084394B (en) * | 2018-08-22 | 2023-11-17 | 重庆大学 | Fresh air preheating device |
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